Cast member Jeremy Renner attends the premiere of "Tag" in Los Angeles on June 7. File Photo by Patrick Rideaux/UPI | License Photo

Dec. 7 (UPI) --Robert Downey Jr. as Tony Stark/Iron Man recorded a farewell message as he floats in a spacecraft with no food or water in Friday's first trailer for Avengers: Endgame.

"Part of the journey is the end," the usually sarcastic Stark said solemnly.

The 2 1/2-minute preview reminds viewers that Josh Brolin's villain Thanos succeeded in his mission to wipe out half of the living creatures on Earth in the last moments of this year's Avengers: Infinity War.